test_isequalnode.js

mozilla-central/dom/base/test/unit/test_isequalnode.js (file symbol)

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Manifest: dom/base/test/unit/xpcshell.toml

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// TEST CODE

var doc; // cache for use in all tests

add_setup(function init() {

  doc = ParseFile("isequalnode_data.xml");

});

add_task(function test_isEqualNode_setAttribute() {

  // NOTE: 0, 2 are whitespace

  var test1 = doc.getElementById("test_setAttribute");

  var node1 = test1.childNodes.item(1);

  var node2 = test1.childNodes.item(3);

  check_eq_nodes(node1, node2);

  node1.setAttribute("bar", "baz");

  check_neq_nodes(node1, node2);

  node2.setAttribute("bar", "baz");

  check_eq_nodes(node1, node2);

  // the null namespace is equivalent to no namespace -- section 1.3.3

  // (XML Namespaces) of DOM 3 Core

  node1.setAttributeNS(null, "quux", "17");

  check_neq_nodes(node1, node2);

  node2.setAttribute("quux", "17");

  check_eq_nodes(node1, node2);

  node2.setAttributeNS("http://mozilla.org/", "seamonkey", "rheet");

  check_neq_nodes(node1, node2);

  node1.setAttribute("seamonkey", "rheet");

  check_neq_nodes(node1, node2);

  node1.setAttributeNS("http://mozilla.org/", "seamonkey", "rheet");

  check_neq_nodes(node1, node2);

  // this overwrites the namespaced "seamonkey" attribute added to node2

  // earlier, because this simply sets whatever attribute has the fully

  // qualified name "seamonkey" (the setAttributeNS attribute string wasn't

  // prefixed) -- consequently, node1 and node2 are still unequal

  node2.setAttribute("seamonkey", "rheet");

  check_neq_nodes(node1, node2);

});

add_task(function test_isEqualNode_clones() {

  // tests all elements and attributes in the document

  var all_elts = doc.getElementsByTagName("*");

  for (var i = 0; i < all_elts.length; i++) {

    var elt = all_elts.item(i);

    check_eq_nodes(elt, elt.cloneNode(true));

    var attrs = elt.attributes;

    for (var j = 0; j < attrs.length; j++) {

      var attr = attrs.item(j);

      check_eq_nodes(attr, attr.cloneNode(true));

  var elm = doc.createElement("foo");

  check_eq_nodes(elm, elm.cloneNode(true));

  check_eq_nodes(elm, elm.cloneNode(false));

  elm.setAttribute("fiz", "eit");

  check_eq_nodes(elm, elm.cloneNode(true));

  check_eq_nodes(elm, elm.cloneNode(false));

  elm.setAttributeNS("http://example.com/", "trendoid", "arthroscope");

  check_eq_nodes(elm, elm.cloneNode(true));

  check_eq_nodes(elm, elm.cloneNode(false));

  var elm2 = elm.cloneNode(true);

  check_eq_nodes(elm, elm2);

  const TEXT = "fetishist";

  elm.textContent = TEXT;

  check_neq_nodes(elm, elm2);

  check_neq_nodes(elm, elm.cloneNode(false));

  check_eq_nodes(elm, elm.cloneNode(true));

  elm2.appendChild(doc.createTextNode(TEXT));

  check_eq_nodes(elm, elm2);

  var att = doc.createAttribute("bar");

  check_eq_nodes(att, att.cloneNode(true));

  check_eq_nodes(att, att.cloneNode(false));

});

add_task(function test_isEqualNode_variety() {

  const nodes = [

    doc.createElement("foo"),

    doc.createElementNS("http://example.com/", "foo"),

    doc.createElementNS("http://example.org/", "foo"),

    doc.createElementNS("http://example.com/", "FOO"),

    doc.createAttribute("foo", "href='biz'"),

    doc.createAttributeNS("http://example.com/", "foo", "href='biz'"),

    doc.createTextNode("foo"),

    doc.createTextNode("   "),

    doc.createTextNode("    "),

    doc.createComment("foo"),

    doc.createProcessingInstruction("foo", "href='biz'"),

    doc.implementation.createDocumentType("foo", "href='biz'", ""),

    doc.implementation.createDocument("http://example.com/", "foo", null),

    doc.createDocumentFragment(),

];

  for (var i = 0; i < nodes.length; i++) {

    for (var j = i; j < nodes.length; j++) {

      if (i == j) {

        check_eq_nodes(nodes[i], nodes[j]);

      } else {

        check_neq_nodes(nodes[i], nodes[j]);

});

add_task(function test_isEqualNode_normalization() {

  var norm = doc.getElementById("test_normalization");

  var node1 = norm.childNodes.item(1);

  var node2 = norm.childNodes.item(3);

  check_eq_nodes(node1, node2);

  node1.appendChild(doc.createTextNode(""));

  check_neq_nodes(node1, node2);

  node1.normalize();

  check_eq_nodes(node1, node2);

  node2.appendChild(doc.createTextNode("fun"));

  node2.appendChild(doc.createTextNode("ctor"));

  node1.appendChild(doc.createTextNode("functor"));

  check_neq_nodes(node1, node2);

  node1.normalize();

  check_neq_nodes(node1, node2);

  node2.normalize();

  check_eq_nodes(node1, node2);

  // reset

  while (node1.hasChildNodes()) {

    node1.removeChild(node1.childNodes.item(0));

  while (node2.hasChildNodes()) {

    node2.removeChild(node2.childNodes.item(0));

  // attribute normalization testing

  var at1 = doc.createAttribute("foo");

  var at2 = doc.createAttribute("foo");

  check_eq_nodes(at1, at2);

  // Attr.appendChild isn't implemented yet (bug 56758), so don't run this yet

  if (false) {

    at1.appendChild(doc.createTextNode("rasp"));

    at2.appendChild(doc.createTextNode("rasp"));

    check_eq_nodes(at1, at2);

    at1.appendChild(doc.createTextNode(""));

    check_neq_nodes(at1, at2);

    at1.normalize();

    check_eq_nodes(at1, at2);

    at1.appendChild(doc.createTextNode("berry"));

    check_neq_nodes(at1, at2);

    at2.appendChild(doc.createTextNode("ber"));

    check_neq_nodes(at1, at2);

    at2.appendChild(doc.createTextNode("ry"));

    check_neq_nodes(at1, at2);

    at1.normalize();

    check_neq_nodes(at1, at2);

    at2.normalize();

    check_eq_nodes(at1, at2);

  node1.setAttributeNode(at1);

  check_neq_nodes(node1, node2);

  node2.setAttributeNode(at2);

  check_eq_nodes(node1, node2);

  var n1text1 = doc.createTextNode("ratfink");

  var n1elt = doc.createElement("fruitcake");

  var n1text2 = doc.createTextNode("hydrospanner");

  node1.appendChild(n1text1);

  node1.appendChild(n1elt);

  node1.appendChild(n1text2);

  check_neq_nodes(node1, node2);

  var n2text1a = doc.createTextNode("rat");

  var n2text1b = doc.createTextNode("fink");

  var n2elt = doc.createElement("fruitcake");

  var n2text2 = doc.createTextNode("hydrospanner");

  node2.appendChild(n2text1b);

  node2.appendChild(n2elt);

  node2.appendChild(n2text2);

  check_neq_nodes(node1, node2);

  node2.insertBefore(n2text1a, n2text1b);

  check_neq_nodes(node1, node2);

  var tmp_node1 = node1.cloneNode(true);

  tmp_node1.normalize();

  var tmp_node2 = node2.cloneNode(true);

  tmp_node2.normalize();

  check_eq_nodes(tmp_node1, tmp_node2);

  n2elt.appendChild(doc.createTextNode(""));

  check_neq_nodes(node1, node2);

  tmp_node1 = node1.cloneNode(true);

  tmp_node1.normalize();

  tmp_node2 = node2.cloneNode(true);

  tmp_node2.normalize();

  check_eq_nodes(tmp_node1, tmp_node2);

  var typeText1 = doc.createTextNode("type");

  n2elt.appendChild(typeText1);

  tmp_node1 = node1.cloneNode(true);

  tmp_node1.normalize();

  tmp_node2 = node2.cloneNode(true);

  tmp_node2.normalize();

  check_neq_nodes(tmp_node1, tmp_node2);

  n1elt.appendChild(doc.createTextNode("typedef"));

  tmp_node1 = node1.cloneNode(true);

  tmp_node1.normalize();

  tmp_node2 = node2.cloneNode(true);

  tmp_node2.normalize();

  check_neq_nodes(tmp_node1, tmp_node2);

  check_neq_nodes(n1elt, n2elt);

  var typeText2 = doc.createTextNode("def");

  n2elt.appendChild(typeText2);

  tmp_node1 = node1.cloneNode(true);

  tmp_node1.normalize();

  tmp_node2 = node2.cloneNode(true);

  tmp_node2.normalize();

  check_eq_nodes(tmp_node1, tmp_node2);

  check_neq_nodes(node1, node2);

  n2elt.insertBefore(doc.createTextNode(""), typeText2);

  check_neq_nodes(node1, node2);

  n2elt.insertBefore(doc.createTextNode(""), typeText2);

  check_neq_nodes(node1, node2);

  n2elt.insertBefore(doc.createTextNode(""), typeText1);

  check_neq_nodes(node1, node2);

  node1.normalize();

  node2.normalize();

  check_eq_nodes(node1, node2);

});

add_task(function test_isEqualNode_whitespace() {

  equality_check_kids("test_pi1", true);

  equality_check_kids("test_pi2", true);

  equality_check_kids("test_pi3", false);

  equality_check_kids("test_pi4", true);

  equality_check_kids("test_pi5", true);

  equality_check_kids("test_elt1", false);

  equality_check_kids("test_elt2", false);

  equality_check_kids("test_elt3", true);

  equality_check_kids("test_elt4", false);

  equality_check_kids("test_elt5", false);

  equality_check_kids("test_comment1", true);

  equality_check_kids("test_comment2", false);

  equality_check_kids("test_comment3", false);

  equality_check_kids("test_comment4", true);

  equality_check_kids("test_text1", true);

  equality_check_kids("test_text2", false);

  equality_check_kids("test_text3", false);

  equality_check_kids("test_cdata1", false);

  equality_check_kids("test_cdata2", true);

  equality_check_kids("test_cdata3", false);

  equality_check_kids("test_cdata4", false);

  equality_check_kids("test_cdata5", false);

});

add_task(function test_isEqualNode_namespaces() {

  equality_check_kids("test_ns1", false);

  equality_check_kids("test_ns2", false);

  // XXX want more tests here!

});

// XXX This test is skipped:

// should Node.isEqualNode(null) throw or return false?

add_task(function test_isEqualNode_null() {

  check_neq_nodes(doc, null);

  var elts = doc.getElementsByTagName("*");

  for (var i = 0; i < elts.length; i++) {

    var elt = elts.item(i);

    check_neq_nodes(elt, null);

    var attrs = elt.attributes;

    for (var j = 0; j < attrs.length; j++) {

      var att = attrs.item(j);

      check_neq_nodes(att, null);

      for (var k = 0; k < att.childNodes.length; k++) {

        check_neq_nodes(att.childNodes.item(k), null);

}).skip();

add_task(function test_isEqualNode_wholeDoc() {

  doc = ParseFile("isequalnode_data.xml");

  var doc2 = ParseFile("isequalnode_data.xml");

  var tw1 = doc.createTreeWalker(doc, NodeFilter.SHOW_ALL, null);

  var tw2 = doc2.createTreeWalker(doc2, NodeFilter.SHOW_ALL, null);

  do {

    check_eq_nodes(tw1.currentNode, tw2.currentNode);

    tw1.nextNode();

  } while (tw2.nextNode());

});

// TESTING FUNCTIONS

/**

 * Compares the first and third (zero-indexed) child nodes of the element

 * (typically to allow whitespace) referenced by parentId for isEqualNode

 * equality or inequality based on the value of areEqual.

 * Note that this means that the contents of the element referenced by parentId

 * are whitespace-sensitive, and a stray space introduced during an edit to the

 * file could result in a correct but unexpected (in)equality failure.

*/

function equality_check_kids(parentId, areEqual) {

  var parent = doc.getElementById(parentId);

  var kid1 = parent.childNodes.item(1);

  var kid2 = parent.childNodes.item(3);

  if (areEqual) {

    check_eq_nodes(kid1, kid2);

  } else {

    check_neq_nodes(kid1, kid2);

function check_eq_nodes(n1, n2) {

  if (n1 && !n1.isEqualNode(n2)) {

    do_throw(n1 + " should be equal to " + n2);

  if (n2 && !n2.isEqualNode(n1)) {

    do_throw(n2 + " should be equal to " + n1);

  if (!n1 && !n2) {

    do_throw("nodes both null!");

function check_neq_nodes(n1, n2) {

  if (n1 && n1.isEqualNode(n2)) {

    do_throw(n1 + " should not be equal to " + n2);

  if (n2 && n2.isEqualNode(n1)) {

    do_throw(n2 + " should not be equal to " + n1);

  if (!n1 && !n2) {

    do_throw("n1 and n2 both null!");